Sanding tables.



PATENTED JAN. 21, 1908'.

P w 1111311111111 SANDING TABLE9 APPLIOATIOK FILED JUNE 11. I907.

[NI/ENTOR By 7 I AtlomeyJ FRED W. NIEMANN, OF CHICAGO, ILLINOIS.

SANDINGTABLES Specification of Letters Patent.

Patented J an. 21, 1908.

Application filed June 11 1907- Serial No. 378.416.

To all whom it may concern:

Be it known that I, FRED W. NIEMANN, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Sanding Tables, of which the following is a specification.

This invention is a device particularly adapted for use in sanding circular objects, such as the rims of circular tables, and has for its object to provide a clamp'which will hold such a table or article while the same is being revolved, the sand paper or block being applied by the workman-to the rim or top of the table, to dress or polish the same. In connection with table work it will be found particularly serviceable, as it will save the time required by hand labor, particularly in polishing the circular surface of the mm.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view illustrating the manner of use of the device. Fig. 2 is a perspective view of the clamp removed from the supporting shaft and from the table. Fig. 3 is a perspective view of the opposite side of the clamp.

Referring specifically to the drawings, 6 v

and 7 indicate the end and cross pieces of a stout rectangular frame the parts of which are firmly bolted or otherwise joined together, and to this frame is bolted or otherwise secured cross boards or pieces 8.

9 is a heavy metal disk, bolted or otherwise fastened to the wooden frame thus constructed, and this disk has a central threaded socket 10 which screws onto the end of a shaft 11 mounted to turn in a suitable frame 12 and provided with fast and loose pulleys 13 and 14, whereby it may be driven.

At each end of the wooden frame is a clamp. These clamps are arranged parallel to each other, and consist of rods having end hooks or jaws 15 and which work through guide brackets 16 fixed to the frame and are threaded at the inner ends to receive turn buckles 17 whereby they may be clamped or released, with respect to the work.

In order to center the table with respect to the clamp the cross pieces 7 have, at the middle thereof, thin strips or plates 19 which may be entered in or registered with the middle or parting joint between the halves of the table top. This allows the table to be very quickly centered. A

In use with a table, as illustrated in Fig. 1, the clamps are applied on the under side of the table, the hooks 15 engaging the slides 18 usually found on extension tables. When the turn-buckles are tightened the table is held by the clamp, and then by rotation of the shaft the sanding or polishing block may be applied to the rim of the table as it turns, thereby very quickly dressing the rim. The table top can also be sanded or polished if desired, and inasmuch as the table is supported wholly at one side all parts of the rim or top can be readily got at.

I claim:

1. The combination with a shaft, of a clamp fixed on the end thereof, comprising a frame, and two pairs of aws arranged on the frame in parallel relation on opposite sides respectively of the axis, and in tangential relation thereto.

2. The combination with a shaft, of a frame attached to the end thereof, and a pair of clamping jaws mounted on the frame on each side of the center, said pairs being arranged parallel to each other and in tangential relation to the axis.

3. A clamp comprising a frame, and a pair of clamps mounted thereon, each clamp consisting of a pair of 'screw rods having clamping jaws at their outer ends and a turn-buckle connecting their inner ends and arranged to move the jaws toward or from each other.

4. The combination with a shaft having the axis.

In testimony whereof I aflix my signature, ini'presence of two witnesses.

FRED W. NIEMANN Witnesses:

W. E. NIEMANN, T. J. RYAN. 

